I have trouble understanding how _default_ vhost works in Apache.

I understand the _default_ should be first, not 100% sure about that eider, but documentation says

If the request contained an unknown or no Host: header it is always served from the primary name-based vhost (the vhost for that address/port appearing first in the configuration file).

Does that^ refer to first address/port but NOT also wildcard address and port ?

Because …

With this below config, wildcard port on _default_:* and port *:80 hardcoded in the defined site …

When accessing the server IP (http://123.123.123.123) it matches the second virtualhost. I was expecting to match the first one (_default_). Since the ip address is not speciffically defined in any Vhost / ServerName

<VirtualHost _default_:*>
        DocumentRoot /var/www/html/default
</VirtualHost>


<VirtualHost *:80>

        ServerName mysite.tld
        ServerAlias www.mysite.tld

        DocumentRoot /var/www/html/mysite.tld

        RewriteEngine On
        RewriteCond %{HTTP_HOST} ^mysite.tld [NC]
        RewriteRule ^(.*)$ https://www.mysite.tld%{REQUEST_URI} [R=301,L]

</VirtualHost>

With this other config, if I hardcode port 80 in both vhosts, it properly matches the first one when accessing server by ip address http://123.123.123.123 and second vhost when accessing by name http://mysite.tld

<VirtualHost _default_:80>
        DocumentRoot /var/www/html/default
</VirtualHost>


<VirtualHost *:80>

        ServerName mysite.tld
        ServerAlias www.mysite.tld

        DocumentRoot /var/www/html/mysite.tld

        RewriteEngine On
        RewriteCond %{HTTP_HOST} ^mysite.tld [NC]
        RewriteRule ^(.*)$ https://www.mysite.tld%{REQUEST_URI} [R=301,L]

</VirtualHost>

So first config is incorrect ? I cannot use <VirtualHost _default_:*> to match http://123.123.123.123 ?

If I defined them both as wildcard port:

<VirtualHost _default_:*>

and second one:

<VirtualHost *:*>

Then it also properly matches ip on the default one and my sites on the second one.